Barker, Fred <br/><br/>
Precambrian Melasyenite of Ute Creek, San Juan Mountains, Colorado - Chemistry, Petrology, and Strontium Isotopes / 
By Fred Barker, Z.E. Peterman and R.F. Marvin. 
 -- Washington :   United States Government Printing Office,   1970 
 - 15 p. -- 
 (Geological  Survey Geology  ;  1311-C).
<br/><br/> Fecha real de registro 21-06-1970 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Colorado<br/>Estratigrafía<br/>Precámbrico
<br/><br/><label>Universal Decimal Class. No.: </label>551.71/.72(788)